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Radial HDI - High Definition Studio DI

Radial Engineering

Regular price $2,259.00

Including GST. Free shipping in NZ.

High Definition Studio Direct Box

The HDI is a studio-quality direct box designed to create exceptional recordings with any instrument, utilizing premium Jensen transformers and a unique Color control that provides an entirely new yet familiar-sounding sonic palette to experiment with.

Despite the complex circuitry housed within the unit, the HDI has an elegant set of controls that allows the musician or engineer to dial up a record-ready sound with a minimal amount of tweaking required. The Level control drives the inputs of the HDI with instant visual feedback from the responsive front panel meter, while the Color knob provides seamless blending between an ultra-clean tone and amp-style distortion and saturation. A smooth Opto compressor can be engaged to control the peaks of the input signal, and a High-Pass Filter clears up any excessive low frequencies.

Gear advice

Are you looking for the right gear for your recording set-up and budget?

Choosing the correct item for your home recording set-up is easy for some and confusing for most. Even if you have been working with audio for years, things are constantly changing. The marketing guff and searching the net usually sends you down a rabbit hole of time-wasting.
The core of Indigo Oak Studio is to help people set up and record by taking the mystery and costs out of recording. Right now, that cost you will save is time, patience and disappointment.


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"Great service from Aaron-already Aaron has helped me make some important early decisions for going forward. It's clear he has an ability to keep things in understandable terms for noobs like me, and I have no doubt he can scale up the advice for all levels. Cheers Aaron and look forward to our next sesh. Pete"
Pete A (Musician)

Get personalised advice from an expert

I've been doing this for 20+ years, and I have been in more home studios than anyone else in New Zealand! I've experience helping people get the best for their unique situation. According to my long list of client reviews, I successfully provide the highest standard of service.  Save yourself time, stress, and the cost of getting the wrong thing.


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"Over the last 20 years I've worked with a number of different recording studios and engineers, and by far and away Aaron is easily the best of the bunch!
What sets him apart is his absolute dedication to any client or project. He has a knack of asking the right questions and finding out exactly what is most important to you and tailoring his service to this.
Amazing patience, knowledge and expertise - and is quick to learn and understand anything 'outside the box' you may be looking for....
For absolute professionalism I believe there is no better than Indigo Oak Studio - I'd add more stars to this rating if I possibly could!"

S Williams (Professional Musician playing the Wellington scene for 20+ years)

Do you offer personal help setting up and learning to use the gear (and the whole recording and mixing process if required)?

YES - I can be booked in to get you up and tracking. I can teach you as little or as much as you would like to know about home recording and mixing.
Click here to find out more about the Home Recording Support I offer.


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"I got to ask all the questions I needed to ask regarding the basics of recording audio into my DAW. Everything was explained clearly and with good examples. Great value for my money"
Alejandro C (Musician)

Book now using the appointment scheduler below